Question

Rebecca is studying to become a glassblower. She attempts 20 glass vases and breaks 3 of them. What is her success rate, shown as a decimal?

A) 0.85
B) 0.80
C) 0.90
D) 0.85

Answer 1

Rebecca successfully made 17 out of 20 glass vases, thus her success rate as a decimal is 0.85, corresponding to option A.

Step-by-step explanation:

The success rate for Rebecca in her glassblowing attempts is calculated by dividing the number of successful attempts by the total number of attempts. Rebecca attempted 20 glass vases and broke 3, meaning she successfully made 17 vases. To find the success rate as a decimal, we divide 17 by 20:

Success Rate = Successful attempts ÷ Total attempts = 17 ÷ 20 = 0.85

Therefore, Rebecca's success rate is 0.85, which corresponds to option A.